KALAPALA, Krupasagar; SALUJA, Mahip; KHAN, Rehbar. A Study of Functional Changes of the Right Heart in Patients of COPD Acute Exacerbation with Respiratory Failure. UAPM Journal of Respiratory Diseases and Allied Sciences, [S. l.], v. 3, n. 01, p. 12–16, 2026. DOI: 10.70192/v3.i1.03. Disponível em: https://uapmjournal.in/index.php/uapmjrdas/article/view/115.. Acesso em: 25 feb. 2026.